1396825268887 has 2 divisors, whose sum is σ = 1396825268888. Its totient is φ = 1396825268886.

The previous prime is 1396825268801. The next prime is 1396825268929. The reversal of 1396825268887 is 7888625286931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1396825268887 - 2⁷ = 1396825268759 is a prime.

It is a super-2 number, since 2×1396825268887² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1396825268287) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 698412634443 + 698412634444.

It is an arithmetic number, because the mean of its divisors is an integer number (698412634444).

Almost surely, 2^{1396825268887} is an apocalyptic number.

1396825268887 is a deficient number, since it is larger than the sum of its proper divisors (1).

1396825268887 is an equidigital number, since it uses as much as digits as its factorization.

1396825268887 is an evil number, because the sum of its binary digits is even.

The product of its digits is 557383680, while the sum is 73.

The spelling of 1396825268887 in words is "one trillion, three hundred ninety-six billion, eight hundred twenty-five million, two hundred sixty-eight thousand, eight hundred eighty-seven".